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Carl Johnson working with Elemental Analyzer in the Organic Mass Spec. Facility.

Carl Johnson working with Elemental Analyzer in the Organic Mass Spec. Facility.
Carl Johnson working with Elemental Analyzer in the Organic Mass Spec. Facility.
Carl Johnson working with Elemental Analyzer in the Organic Mass Spec. Facility.
Carl Johnson working with Elemental Analyzer in the Organic Mass Spec. Facility.
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412987
Kleindinst, Thomas N.
Carl Johnson working with Elemental Analyzer in the Organic Mass Spec. Facility.
Still Image
02/24/2015
graphics/WHOI_Carl_Johnson_jpg/_DSC7374.jpg
10 milligrams of sediment wrapped in tin is dropped into a 1,020 degrees (C) Elemental Analyzer. A pulse of oxygen causes the tin to ignite, quantitatively combusting the sediment in a 1,700 degrees (C) local environment. Combustion of a sediment sample in an Elemental Analyzer.
Image Of the Day caption:
Research specialist Carl Johnson carefully removes a quartz liner from the sample combustion chamber of an elemental analyzer glowing at 1000?C (1,832?F) just six inches below his fingertips. Compressed pellets of sediment, soil, powdered rock or biological samples weighing only a few milligrams are encased in tin "boats" and burned in the analyzer to determine the relative amounts of carbon and nitrogen they contain. After several dozen samples, Johnson or another technician must remove any unburned residue before work can continue.
Photo by Tom Kleindinst
© Woods Hole Oceanographic Institution
http://www.whoi.edu/website/organic-mass-spectrometry-facility/overview
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